Answer:
Has true tissue (germ) layers; jellyfish have 2 layers and earthworms have 3 layers: Eumetazoa
Development of a nervous system and brain: Cephalization
Presence of similar, repeated units in the body; first seen in earthworms (annelids): Segmentation
Lacks a backbone: Invertebrate
Does not have tissue (germ) layers; example are sponges: Parazoa
Has a notochord and possibly a backbone: Vertebrate
Step-by-step explanation:
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